If you're still wondering about anatomically detailed dolphin toys, you can still order the bad dragon dolphin model! I got one just last year, you just have to pay a little extra cuz they have to reprint the mold to cast it and such since they wouldn't have any at the ready. My large was around 180-200$, I forget exactly, but it's very nice to have
I will say, strictly speaking in terms of toying ability, kona is a better toy, but the reality factor of "the dolphin" is certainly something that adds to it, so it's very much still worth.
Anyways yeah, just submit a help ticket and tell them you want to order it and they'll help ya out!
I can post pics of mine if you'd wanna see how it turned out with kona's natural colors